{Body Systems

Dividing the body

Provides all body systems with oxygen and nutrients

Carries away carbon dioxide and other wastes

Circulatory System

Consists of: Blood (oxygen source for the body) Heart (pumps blood throughout the

body) Arteries (carry blood away from heart) Veins (carry blood to the heart)

…. Continued

Systolic (peak pressure in the arteries) Diastolic (minimal pressure in arteries)

Blood Pressure

Breaks down food into chemicals that the body can use for energy and to maintain cells and tissues

Digestive System

Consists of: Liver (detoxification and protein

synthesis) Stomach (1st step of digestion after

chewing) Small Intestine (where MOST digestion

takes place) Large Intestine (absorbs water and pass

useless waste through the body)

Digestive System

Carries oxygen from the air to the bloodstream and rids the body of carbon dioxide

Respiratory System

Consists of: Lungs Bronchi (trachea to lungs) Bronchial tubes (bronchi to

alveoli) Alveoli (lungs to

bloodstream- gas exchange)

Respiratory System

Gathers information from the external environment, stores and processes it, and initiates appropriate responses

Nervous System

Consists of: Axon Dendrite Neuron-

Processes and transmits information by electrical signaling

Brain- Controls all senses

Nervous System

Nervous System Components

Central Nervous System- Brain and Spinal Cord

Peripheral Nervous System- Connects the body to the CNS

Brain

Cerebrum- Largest part of the brain. Controls all senses and emotions

Cerebellum- Second largest. Controls muscle coordination, balance, and posture

Brainstem- Connects to spinal cord. Controls heart rate, blood pressure, and breathing

Provides the framework and protection for the body

The typical human body has 206 bones

Skeletal System

Skeletal and Muscular System

A place where two bones connect is called a joint.

Pivot Ball and Socket Hinge

Skeletal and Muscular System

Types of Muscle SMOOTH- makes up your internal organs

(stomach and intestine) CARDIAC- (you better know) SKELETAL- muscle that attaches bone to

bone